The long-awaited 2.2 firmware updates for iPhones and iPod touch models hit iTunes at midnight last night, pushing a good deal of new features and long-awaited fixes to the mobile devices. We've already detailed some of the major new features already: Street View with walking/transit directions in Google Maps (iPhones only, unfortunately) and "emoji" face emoticons, over-the-air podcast downloading, and, while not really a feature, it's expected that 2.2 will be jailbroken before you know it. There's a good number of interface and usability improvements too, like improved HTML email formatting and location sharing, stability and menu bar tweaks to Safari, and a few other punch-list items. I'm downloading my 240MB-ish iPod update just fine this morning; tell us your impressions of 2.2 in the comments.